JBossExternalizerAdapter must be whitelisted when jboss-marshalling is used

ISPN-10868 removed org.infinispan.jboss.marshalling.commons.JBossExternalizerAdapter from the default ClassWhiteList however this is required if the @SerializeWith annotations are used with jboss-marshalling.

We should ensure that org.infinispan.jboss.marshalling.commons.JBossExternalizerAdapter is whitelisted. However, instead of adding to the default whitelist, it should be possible to simply add the class to the white list only when CheckedClassResolver is used.